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CVE-2026-103409

9.8 critical Published
NVD · CVE.org

A Missing authentication for critical function vulnerability in Juniper Networks Session Smart Router allows an unauthenticated network-based attacker to obtain administrative privileges by passing crafted URL parameters to an insecure endpoint running as root. Note that this vulnerability can only be exploited prior to the device being onboarded to Mist/Conductor. The issue can no longer be exploited once a device is onboarded to Mist/Conductor.

Fix

Nothing published yet: no patch, vendor advisory or mitigation reference on NVD, no vendor advisory in the News for this CVE, not in CISA's KEV, no fixed package version. BaselineWatch does not guess at one.

Change history 3

  1. StatusAwaiting Analysis → PublishedNVD modified 2026-10-28 16:36
  2. StatusPublished → Awaiting AnalysisNVD modified 2026-10-28 17:17
  3. First seenCVSS 9.8 · juniper networksNVD modified 2026-10-28 16:36

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 1